It will work fine in 120 V water heater but if the one you’re replacing has say reset button which is usually a red button so that it does not overheat if it malfunctions that should not be used as a replacement Because this has now over temperature limit.
GREAT question! HERE is your extended and deserved answer... You did not mention IF your Water Heater has DUAL HEATER ELEMENTS and dual Thermostats? IF DUAL, I would HIGHLY recommend you replace BOTH because this Thermostat cost is so reasonable AND you are "INTO" the water heater vitals already! BETTER to replace them BOTH so you "know the history" of your heater, but there is more... IF you have a SINGLE Thermostat it will be used more and more, depending on how many dishes, clothes washes OR generally ~ how many people are in the house?... So, the MORE the electronics INSIDE the Thermostat are used, THAT is going to greatly impact that Thermostat life! "IF you have TWO Heater Elements they are 'independent'. So with ONE heater element bad, your water WILL EVENTUALLY heat water, but it will take MUCH more time to do so. Also your MAIN (upper) THERMOSTAT assures only ONE ELEMENT will be "ON" at a time ~ or BOTH are off. So a BAD ELEMENT means NO water heating when power is SENT TO IT and now your water heater "efficiency" suffers greatly! So many people think 'their heater finally went bad' because of "poor water heating "when really, it's just a matter of ONE of 2 heating elements are bad? So you see how it really matters if yours is a SINGLE Thermostat or dual? I must add that the "INTERNAL TEMPERATURE" of ALL hot water water heaters is QUITE HIGH and 24/7 too... This "somewhat constant abuse" from HEAT is (almost ALWAYS) a "killer" to electronics... especially in hot water heaters, electric ovens etc... and especially the required Thermostats too. I must mention 'remote' heater wall thermostats and how they are ONE exception because they are removed from the actual heater so it won't see the severe swings in temp that the other devices will... I'm sure others will think of more exceptions. AOCCarson
This is a Therm-O-Disc 59T thermostat rebranded as Everbilt. According to the Therm-O-Disc website, it's rated for 30 amps at up to 250 volts.
Usually it about 10 degrees below the set temperature
Thank you for contacting Rheem, this part will work for that model.
Please contact Reliance to confirm if this is compatible.
This thermostat offers a temperature range from 90°F to 150°F